the national security agency tracked the locations of up to 5 billion overseas cell phone calls, including those belonging to americans. the tracking picks up the names of the people the users are calling. it does not gather data on american cell phones inside the u.s. >>> president obama is wading into the minimum wage debate, as it grabs a spotlight today in cities coast-to-coast. president obama called on congress to increase the federal minimum wage. he pressed for an extension to jobless benefits to over a million long-term unemployed people. they expire three days after christmas. >>> meantime, fast food workers across the country will have their say today. they're staging another round of walkouts for higher pay. among the demands, a $15 an hour minimum wage and the right to unionize. experts say such a pay increase could push up fast food costs by about 20%. put another way, the cost of a $3 hamburger could rise to around $3.50. >>> universal pictures is shutting down production on "fast & furious 7," to figure out how to proceed with the character played by paul walker. a californ